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12740994695 = 51113136113093
BaseRepresentation
bin10111101110110110…
…00010011010000111
31012212221102120222102
423313123002122013
5202043143312240
65504135422315
7630506445062
oct136733023207
935787376872
1012740994695
115448a60990
122576b2499b
131280828420
1488c1c78d9
154e883e815
hex2f76c2687

12740994695 has 32 divisors (see below), whose sum is σ = 17976700224. Its totient is φ = 8546457600.

The previous prime is 12740994667. The next prime is 12740994697. The reversal of 12740994695 is 59649904721.

It is not a de Polignac number, because 12740994695 - 224 = 12724217479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12740994695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740994697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 966569 + ... + 979661.

It is an arithmetic number, because the mean of its divisors is an integer number (561771882).

Almost surely, 212740994695 is an apocalyptic number.

12740994695 is a deficient number, since it is larger than the sum of its proper divisors (5235705529).

12740994695 is a wasteful number, since it uses less digits than its factorization.

12740994695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14483.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 12740994695 in words is "twelve billion, seven hundred forty million, nine hundred ninety-four thousand, six hundred ninety-five".

Divisors: 1 5 11 13 55 65 143 715 1361 6805 13093 14971 17693 65465 74855 88465 144023 170209 194623 720115 851045 973115 1872299 9361495 17819573 89097865 196015303 231654449 980076515 1158272245 2548198939 12740994695